Show function signature when docstring is empty

[piti118]

similar to #987

def my_function( my, argument, name, is_descriptive)
    return None #but I have no docstring

my_function(<TAB>

It should at least show the function signature (if available via co_varname etc.)

I'm willing to push the code if you could point me where to look.

[Carreau]

Console Qtconsole or notebook ?

It does show the function sig for me (notebook):

my_function(my, argument, name, is_descriptive)
<no docstring>

qtconsole/console does list the variable in namespace...

[piti118]

In notebook Hmm. for me tool tips doesn't even show up. Let me try upgrade to head version and try again.

[minrk]

@piti118 are the function definition and the completion happening in the same cell in the notebook? If so, that would explain the issue - the completions for code that doesn't exist yet on the kernel are very primitive (pure js).